How severe is CVE-2015-0635?

CVE-2015-0635 has a CVSS 2.0 base score of 9.0, rated critical severity.

Is CVE-2015-0635 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (80th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2015-0635?

CVE-2015-0635 primarily affects Cisco Ios Xe. In total, 43 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2015-0635?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its critical severity, prioritise patching exposed systems.

When was CVE-2015-0635 published?

CVE-2015-0635 was published on 2015-03-26 and last updated on 2026-06-17.

CVE-2015-0635

CVE-2015-0635 is a critical-severity vulnerability in Cisco Ios Xe with a CVSS 2.0 base score of 9.0. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-20.

Key facts

Severity: Critical (CVSS 2.0 base score 9.0)
EPSS exploit prediction: 2% (80th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-20
Affected product: Cisco Ios Xe
Published: 2015-03-26
Last modified: 2026-06-17

Description

The Autonomic Networking Infrastructure (ANI) implementation in Cisco IOS 12.2, 12.4, 15.0, 15.2, 15.3, and 15.4 and IOS XE 3.10.xS through 3.13.xS before 3.13.1S allows remote attackers to spoof Autonomic Networking Registration Authority (ANRA) responses, and consequently bypass intended device and node access restrictions or cause a denial of service (disrupted domain access), via crafted AN messages, aka Bug ID CSCup62191.

Frequently asked questions

What is CVE-2015-0635?: The Autonomic Networking Infrastructure (ANI) implementation in Cisco IOS 12.2, 12.4, 15.0, 15.2, 15.3, and 15.4 and IOS XE 3.10.xS through 3.13.xS before 3.13.1S allows remote attackers to spoof Autonomic Networking Registration Authority (ANRA) responses, and consequently bypass intended device and node access restrictions or cause a denial of service (disrupted domain access), via crafted AN messages, aka Bug ID CSCup62191.
How severe is CVE-2015-0635?: CVE-2015-0635 has a CVSS 2.0 base score of 9.0, rated critical severity.
Is CVE-2015-0635 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (80th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2015-0635?: CVE-2015-0635 primarily affects Cisco Ios Xe. In total, 43 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2015-0635?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its critical severity, prioritise patching exposed systems.
When was CVE-2015-0635 published?: CVE-2015-0635 was published on 2015-03-26 and last updated on 2026-06-17.

References

Affected products (43)

cpe:2.3:o:cisco:ios_xe:3.10s.0:*:*:*:*:*:*:*
cpe:2.3:o:cisco:ios_xe:3.10s.1:*:*:*:*:*:*:*
cpe:2.3:o:cisco:ios_xe:3.10s.2:*:*:*:*:*:*:*
cpe:2.3:o:cisco:ios_xe:3.10s.3:*:*:*:*:*:*:*
cpe:2.3:o:cisco:ios_xe:3.10s.4:*:*:*:*:*:*:*
cpe:2.3:o:cisco:ios_xe:3.10s.5:*:*:*:*:*:*:*
cpe:2.3:o:cisco:ios_xe:3.11s.0:*:*:*:*:*:*:*
cpe:2.3:o:cisco:ios_xe:3.11s.1:*:*:*:*:*:*:*
cpe:2.3:o:cisco:ios_xe:3.11s.2:*:*:*:*:*:*:*
cpe:2.3:o:cisco:ios_xe:3.11s.3:*:*:*:*:*:*:*
cpe:2.3:o:cisco:ios_xe:3.12s.0:*:*:*:*:*:*:*
cpe:2.3:o:cisco:ios_xe:3.12s.1:*:*:*:*:*:*:*
cpe:2.3:o:cisco:ios_xe:3.12s.2:*:*:*:*:*:*:*
cpe:2.3:o:cisco:ios_xe:3.13s.0:*:*:*:*:*:*:*
cpe:2.3:o:cisco:ios:12.2\(33\)ird1:*:*:*:*:*:*:*
cpe:2.3:o:cisco:ios:12.2\(33\)ire3:*:*:*:*:*:*:*
cpe:2.3:o:cisco:ios:12.2\(33\)sxi4b:*:*:*:*:*:*:*
cpe:2.3:o:cisco:ios:12.2\(44\)sq1:*:*:*:*:*:*:*
cpe:2.3:o:cisco:ios:12.4\(25e\)jam1:*:*:*:*:*:*:*
cpe:2.3:o:cisco:ios:12.4\(25e\)jap1m:*:*:*:*:*:*:*
cpe:2.3:o:cisco:ios:12.4\(25e\)jaz1:*:*:*:*:*:*:*
cpe:2.3:o:cisco:ios:15.0\(2\)ed1:*:*:*:*:*:*:*
cpe:2.3:o:cisco:ios:15.2\(1\)ex:*:*:*:*:*:*:*
cpe:2.3:o:cisco:ios:15.2\(2\)jb1:*:*:*:*:*:*:*
cpe:2.3:o:cisco:ios:15.3\(2\)s2:*:*:*:*:*:*:*
cpe:2.3:o:cisco:ios:15.3\(3\)ja1n:*:*:*:*:*:*:*
cpe:2.3:o:cisco:ios:15.3\(3\)jab1:*:*:*:*:*:*:*
cpe:2.3:o:cisco:ios:15.3\(3\)jn:*:*:*:*:*:*:*
cpe:2.3:o:cisco:ios:15.3\(3\)jnb:*:*:*:*:*:*:*
cpe:2.3:o:cisco:ios:15.3\(3\)s:*:*:*:*:*:*:*
cpe:2.3:o:cisco:ios:15.3\(3\)s1:*:*:*:*:*:*:*
cpe:2.3:o:cisco:ios:15.3\(3\)s2:*:*:*:*:*:*:*
cpe:2.3:o:cisco:ios:15.3\(3\)s3:*:*:*:*:*:*:*
cpe:2.3:o:cisco:ios:15.3\(3\)s4:*:*:*:*:*:*:*
cpe:2.3:o:cisco:ios:15.3\(3\)s5:*:*:*:*:*:*:*
cpe:2.3:o:cisco:ios:15.4\(1\)s:*:*:*:*:*:*:*
cpe:2.3:o:cisco:ios:15.4\(1\)s1:*:*:*:*:*:*:*
cpe:2.3:o:cisco:ios:15.4\(1\)s2:*:*:*:*:*:*:*
cpe:2.3:o:cisco:ios:15.4\(1\)s3:*:*:*:*:*:*:*
cpe:2.3:o:cisco:ios:15.4\(2\)s:*:*:*:*:*:*:*

More vulnerabilities in Cisco Ios Xe

CVE-2025-20188 — Critical (CVSS 10.0): A vulnerability in the Out-of-Band Access Point (AP) Image Download, the Clean Air Spectral Recording, and the client…
CVE-2023-20198 — Critical (CVSS 10.0): Cisco is providing an update for the ongoing investigation into observed exploitation of the web UI feature in Cisco…
CVE-2021-34770 — Critical (CVSS 10.0): A vulnerability in the Control and Provisioning of Wireless Access Points (CAPWAP) protocol processing of Cisco IOS XE…
CVE-2019-12643 — Critical (CVSS 10.0): A vulnerability in the Cisco REST API virtual service container for Cisco IOS XE Software could allow an…
CVE-2021-1619 — Critical (CVSS 9.8): A vulnerability in the authentication, authorization, and accounting (AAA) function of Cisco IOS XE Software could…
CVE-2020-3227 — Critical (CVSS 9.8): A vulnerability in the authorization controls for the Cisco IOx application hosting infrastructure in Cisco IOS XE…

All CVEs affecting Cisco Ios Xe →

Other CWE-20 (Improper Input Validation) vulnerabilities

CVE-2026-48316 — Critical (CVSS 10.0): ColdFusion versions 2025.9, 2023.20 and earlier are affected by an Improper Input Validation vulnerability that could…
CVE-2026-48281 — Critical (CVSS 10.0): ColdFusion versions 2025.9, 2023.20 and earlier are affected by an Improper Input Validation vulnerability that could…
CVE-2026-48277 — Critical (CVSS 10.0): ColdFusion versions 2025.9, 2023.20 and earlier are affected by an Improper Input Validation vulnerability that could…
CVE-2026-48055 — Critical (CVSS 10.0): Streambert is a cross-platform Electron Desktop App to stream and download any video media. In versions 2.4.0 and…
CVE-2026-34910 — Critical (CVSS 10.0): A malicious actor with access to the network could exploit an Improper Input Validation vulnerability found in UniFi OS…
CVE-2026-33587 — Critical (CVSS 10.0): Lack of user input sanitisation in Open Notebook v1.8.3 allows the application user to execute Python code (and…

Browse all CWE-20 (Improper Input Validation) vulnerabilities →